Metal boat



Sept. 22, 1931. p PRlTCl-{ARD 1,823,986

METAL BOAT Filed June 29, 1931 combination a base and keel cast in light metal or light metal alloy, a rebated edge along each side margin of rthe cast base and light metal or light inetalalloy sheeting secured to the rebated edge so as to form the sides of thehulL c 3. inprove'dinietal looat hiill eenfrising'in combination a base and keel east in one inte gral structure of light metal or light-metal alloy having a 'ce'ntal longitidinal stiifenig fili', flanges at the "side edges f the cast hase structure and metal sheets secured to the flanges to form the sides of the hull.

4. Improved metal boathull comprisin in combinatn bas and integral lel'rnemgler formed of castings AofV light ,metal on light lnextalalloy said castings mee'lingat thel longitudifnalcentre of the base and having ianges at the meeting edges to form attachment meansland to form a centralstiening rib or ,keel pie`e;flanges at the side edges of said baseY and. sheet metal side plates' secured` to Y said side edge flan-ges so as to form thesid'es of the huni .-2,5

5. Improved metal side edges 'of thelloase, sheets of light meta-1 alley secured to the side angesfto vform the Vhull lsi'i'iles,Y transverse rib stifener frames secn'ied Within the baseY and supporting the sides and longitudinal` sti-Eener `gunWa-le membrsat the edges `oil thesides.L D v In testimony whereof Irafix my signatlrn'e.l

. Y BERCY PRITCHARD.

boat hull Ycomprising -in Y combination a. hase cast in light metal alloy7 acentralinternally projecting keel rib 'at the centi-epi the base, upstandingflanges atthe 

